CN110496935A - Mating liquid curing-agent and its application method for warm core box technique phosphate binders - Google Patents
Mating liquid curing-agent and its application method for warm core box technique phosphate binders Download PDFInfo
- Publication number
- CN110496935A CN110496935A CN201910900084.7A CN201910900084A CN110496935A CN 110496935 A CN110496935 A CN 110496935A CN 201910900084 A CN201910900084 A CN 201910900084A CN 110496935 A CN110496935 A CN 110496935A
- Authority
- CN
- China
- Prior art keywords
- liquid
- agent
- phosphate binders
- mating
- core box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/18—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of inorganic agents
- B22C1/185—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of inorganic agents containing phosphates, phosphoric acids or its derivatives
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The present invention provides a kind of mating liquid curing-agent and its application method for warm core box technique phosphate binders, the mating liquid curing-agent includes A liquid and B liquid, and the mass ratio of A liquid and B liquid is 1.25~3:1, wherein A liquid is the silane resin acceptor kh-550 hydrolyzate being formulated by silane resin acceptor kh-550 and water 1:1~5 in mass ratio, and B liquid is the aqueous sodium carbonate being formulated by natrium carbonicum calcinatum and water 1:3 in mass ratio.The technical problem that intensity is unstable and sand fluidity is poor during the sand mold (core) that mating liquid curing-agent provided by the present invention can solve preparation is stored, and it is easy to operate, it is at low cost, it can promote the use of.
Description
Technical field
The present invention relates to the Modeling Material fields in casting industry, refer specifically to a kind of phosphate bonded for warm core box technique
The mating liquid curing-agent and its application method of agent.
Background technique
As increasingly strict, the awakening of the environmental consciousness of people is supervised in environmental protection, for traditional organic resin binder institute
Caused by the very important and traditional inorganic binder of problem of environmental pollution, since moulding intensity is low, molding sand collapsibility difference etc. is each
Effect is not satisfactory in practical applications for kind problem.Seek a kind of novel inorganic bonding that can substitute traditional organic resin sand
Agent is extremely urgent.
Phosphate binders are a kind of environmentally protective casting binders, and solidification temperature is low, and heat-resist, gas forming amount is small, high
Warm collapsibility is good, reuse is good and simple process, it is at low cost the advantages that, be a kind of moulding for having very much application value and application prospect
Material.At present phosphate binders sand curing mode mainly have it is hot hard, from hard and cold, warm core box, it is made by heat hardening
Just intensity is higher for the sand core obtained, but due to heating temperature height, energy consumption is larger；Although self-hardening sand hardened forming at normal temperature, energy consumption
It is low, but the up time is short, is currently used primarily in heavy castings.And warm core box equally makes for current industrial production
With penetrating sand machine sample preparation, mould heating-up temperature is lower, and low energy consumption, is expected to replace the toxic gases coremaking such as triethylamine set process, but make before this
" 8 " word sample that there are its intensity is low, resistance to water soak is poor, and sand fluidity is poor.Based on the above technology and problem, it is necessary to make
The standby mating liquid curing-agent for warm core box technique phosphate binders a kind of out.
Summary of the invention
It is an object of the present invention to provide a kind of mating liquid curing-agents for warm core box technique phosphate binders
Instead of current existing liquid curing-agent matched with phosphate binders, intensity during sand mold (core) storage to solve preparation
Unstable and poor sand fluidity technical problem.
The second purpose of the present invention is to provide a kind of mating liquid curing-agents for warm core box technique phosphate binders
Application method, the method is simple and efficient, at low cost.
The present invention realizes one of above-mentioned purpose, using following technical scheme:
A kind of mating liquid curing-agent for warm core box technique phosphate binders, the mating liquid curing-agent include
A liquid and B liquid, and the mass ratio of A liquid and B liquid is 1.25~3:1, wherein A liquid is to press quality by silane resin acceptor kh-550 and water
Than the silane resin acceptor kh-550 hydrolyzate that 1:1~5 are formulated, B liquid is to be prepared by natrium carbonicum calcinatum and water 1:3 in mass ratio
Made of aqueous sodium carbonate.
The silane resin acceptor kh-550 is technical grade.
The natrium carbonicum calcinatum is that analysis is pure.
The water is pure water.
The present invention realizes the two of above-mentioned purpose, using following technical scheme:
A kind of application method of the mating liquid curing-agent for warm core box technique phosphate binders includes following step
It is rapid:
(1) a certain amount of roughing sand, the phosphate binders of roughing sand weight 2~2.5%, roughing sand weight 0.5%~0.8% are weighed
A liquid and roughing sand weight 0.2%~0.4% B liquid；
(2) first 30s~50s is mixed with A liquid in roughing sand, phosphate binders is then added and stir 60s~80s, most
It shakes out after B liquid stirring 60s~80s is added afterwards.
Following technology original is based on provided by the present invention for the mating liquid curing-agent of warm core box technique phosphate binders
Reason: although coupling agent has facilitation to the adhesion strength of phosphate binders, coupling agent reacts very with phosphatic
Rapidly, cause sand fluidity poor, so that the sample degree of packing reduces, and then strength reduction, the present invention passes through hydrolysis+surface
Combined Treatment mode is coated, allows silane resin acceptor kh-550 to mix with water first, so that gamma-aminopropyl-triethoxy-silane
It is hydrolyzed into gamma-aminopropyl-triethoxy silanol, the reaction rate with phosphate binders can be substantially reduced, and coupling agent hydrolyzes
Liquid dosage is smaller, and obtained probe intensity is higher, substantially reduces cost, but can not improve the anti-of sample using coupling agent hydrolyzate
Hygroscopicity, sample is unable to reach active strength under high humidity environment, improves the anti-moisture absorption of sample with natrium carbonicum calcinatum here
Property, natrium carbonicum calcinatum is mixed with water in proportion so that the dispersion of mulling process more evenly, coupling agent hydrolyzate is first added in when mulling
It mixes, binder is then added and mixes, is eventually adding sodium carbonate liquor, sodium carbonate is reacted with binder to be formed a tunic and be coated on
Binder outer surface has completely cut off phosphate binders and has contacted with the direct of air, to achieve the purpose that improve anti-moisture absorption, simultaneously
Water can also improve sand fluidity as the medium of reaction, extend the molding sand up time.
Compared with prior art, the invention has the following advantages:
(1) by hydrolyzing silane resin acceptor kh-550, so that sample tensile strength is obviously improved；
(2) compared with making curing agent before this with silane coupling agent, using the mating liquid curing-agent of the present invention in identical addition
Under the conditions of amount, silane coupling agent additional amount is lower in silane resin acceptor kh-550 hydrolyzate, and then production cost is lower；
(3) mobility of molding sand can be improved by introducing Carbon Dioxide sodium solution, while also improve the resistance to water soak of sample,
And it is easy to operate, it is at low cost, it can promote the use of.
Specific embodiment
By following specific embodiments and it is described in detail it will be further appreciated that the features and advantages of the invention.It is provided
Embodiment is only the explanation to the method for the present invention, remaining content without limiting the invention in any way announcement.
Embodiment 1
1, silane resin acceptor kh-550 is uniformly mixed with water 1:1 in mass ratio, obtains A after coupling agent hydrolysis sufficiently
Liquid, it is spare；
2, natrium carbonicum calcinatum is uniformly mixed with water 1:3 in mass ratio to get B liquid is arrived, it is spare；
3,1000g roughing sand is weighed, 25g phosphate binders, 5gA liquid, 4gB liquid is spare.
4, first 30s is mixed with A liquid in roughing sand, phosphate binders is then added and stir 60s, is eventually adding B liquid and stirs
It shakes out after mixing 60s.
5, moulding-sand property is tested: standard figure of eight sand sample is made using precoated sand sampling machine, mold temperature is arranged 60 DEG C,
Shooting pressure 0.4Mpa, blow gas pressure 0.2Mpa gassing time 2 minutes, demould storage after hardening, primary every test in 24 hours
Tensile strength.
Embodiment 2
1, silane resin acceptor kh-550 is uniformly mixed with water 1:3 in mass ratio, obtains A after coupling agent hydrolysis sufficiently
Liquid, it is spare；
2, natrium carbonicum calcinatum is uniformly mixed with water 1:3 in mass ratio and obtains B liquid, it is spare；
3,1000g roughing sand is weighed, 20g phosphate binders, 6gA liquid, 2gB liquid is spare.
4, first 40s is mixed with A liquid in roughing sand, phosphate binders is then added and stir 70s, is eventually adding B liquid and stirs
It shakes out after mixing 70s.
5, moulding-sand property is tested: standard figure of eight sand sample is made using precoated sand sampling machine, mold temperature is arranged 60 DEG C,
Shooting pressure 0.4Mpa, blow gas pressure 0.2Mpa gassing time 2 minutes, demould storage after hardening, primary every test in 24 hours
Tensile strength.
Embodiment 3
1, silane resin acceptor kh-550 is uniformly mixed with water 1:5 in mass ratio, obtains A after coupling agent hydrolysis sufficiently
Liquid, it is spare；
2, natrium carbonicum calcinatum is uniformly mixed with water 1:3 in mass ratio and obtains B liquid, it is spare；
3,1000g roughing sand is weighed, 24g phosphate binders, 8gA liquid, 3gB liquid is spare.
4, first 50s is mixed with A liquid in roughing sand, phosphate binders is then added and stir 80s, is eventually adding B liquid and stirs
It shakes out after mixing 80s.
5, moulding-sand property is tested: standard figure of eight sand sample is made using precoated sand sampling machine, mold temperature is arranged 60 DEG C,
Shooting pressure 0.4Mpa, blow gas pressure 0.2Mpa gassing time 2 minutes, demould storage after hardening, primary every test in 24 hours
Tensile strength.
Comparative example:
Roughing sand 1000g is weighed, it is spare that phosphate binders 25g, 4g silane resin acceptor kh-550 makees curing agent.By roughing sand elder generation
30s is mixed with the curing agent, shakes out after phosphate binders stirring 60s is then added.Moulding-sand property test: using covering
Standard figure of eight sand sample is made in film sand sampling machine, and mold temperature is arranged 60 DEG C, shooting pressure 0.4Mpa, blow gas pressure 0.2Mpa,
Gassing time 2 minutes, storage is demoulded after hardening, every the tensile strength of test in 24 hours.
The moulding-sand property of above-described embodiment 1-3 and comparative example test result is as follows table 1:
The test of 1 moulding-sand property of table
Note: test temperature range: 15-30 DEG C, humidity range 30%-50%
By above-mentioned experimental result it is found that a kind of mating liquid for warm core box technique phosphate binders provided by the invention
The phosphate binders sand mold sample dry strength of body curing agent preparation is high, and strength stability is good during storage.
Claims (5)
1. a kind of mating liquid curing-agent for warm core box technique phosphate binders, it is characterised in that: the mating liquid
Curing agent includes A liquid and B liquid, and the mass ratio of A liquid and B liquid is 1.25~3:1, and wherein A liquid is by silane resin acceptor kh-550
The silane resin acceptor kh-550 hydrolyzate being formulated with water 1:1~5 in mass ratio, B liquid are to press matter by natrium carbonicum calcinatum and water
Measure the aqueous sodium carbonate being formulated than 1:3.
2. the mating liquid curing-agent as described in claim 1 for warm core box technique phosphate binders, it is characterised in that:
The silane resin acceptor kh-550 is technical grade.
3. the mating liquid curing-agent as described in claim 1 for warm core box technique phosphate binders, it is characterised in that:
The natrium carbonicum calcinatum is that analysis is pure.
4. the mating liquid curing-agent as described in claim 1 for warm core box technique phosphate binders, it is characterised in that:
The water is pure water.
5. a kind of mating liquid curing-agent according to any one of claims 1-4 for warm core box technique phosphate binders
Application method, it is characterised in that: comprise the steps of:
(1) it weighs a certain amount of roughing sand, the phosphate binders for accounting for roughing sand weight 2~2.5%, account for roughing sand weight 0.5%~0.8%
A liquid and account for the B liquid of roughing sand weight 0.2%~0.4%；
(2) by roughing sand first with A liquid be mixed 30s~50s, then be added phosphate binders stir 60s~80s, finally plus
It shakes out after entering B liquid stirring 60s~80s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910900084.7A CN110496935B (en) | 2019-09-23 | 2019-09-23 | Matched liquid curing agent for phosphate binder for warm-box process and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910900084.7A CN110496935B (en) | 2019-09-23 | 2019-09-23 | Matched liquid curing agent for phosphate binder for warm-box process and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110496935A true CN110496935A (en) | 2019-11-26 |
| CN110496935B CN110496935B (en) | 2021-05-25 |
Family
ID=68592543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910900084.7A Active CN110496935B (en) | 2019-09-23 | 2019-09-23 | Matched liquid curing agent for phosphate binder for warm-box process and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110496935B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07232238A (en) * | 1994-02-23 | 1995-09-05 | Ube Ind Ltd | Production of collapsible sand core |
| WO2001030517A2 (en) * | 1999-10-26 | 2001-05-03 | Vaw Aluminium Ag | Binding agent system, core sand mixture and a method for producing the same |
| CN101259515A (en) * | 2007-03-05 | 2008-09-10 | 上海市机械制造工艺研究所 | CO2 hardened silicate-bonded sand additive agent and formative technology thereof |
| CN101875830A (en) * | 2009-11-23 | 2010-11-03 | 黑龙江省科学院石油化学研究院 | Phenolic resin/phosphate hybrid adhesive and preparation method thereof |
| CN101941045A (en) * | 2009-07-10 | 2011-01-12 | 湖北工业大学 | Preparation method and application of phosphate inorganic casting binder suspension curing agent |
| CN102139340A (en) * | 2011-02-01 | 2011-08-03 | 福州大学 | Composite powder binding agent containing gelatinized phosphate starch and kaolin and preparation method thereof |
| CN103272996A (en) * | 2013-04-16 | 2013-09-04 | 繁昌县恒鑫汽车零部件有限公司 | Sand sticking-resistant precoated sand |
| CN104289661A (en) * | 2014-09-10 | 2015-01-21 | 湖北工业大学 | Preparation of coated sand by use of phosphate inorganic binder and molding method thereof |
| CN106807882A (en) * | 2017-02-06 | 2017-06-09 | 柳州市柳晶科技有限公司 | Inorganic precoated sand antiquated sand regeneration decomposition helps liquid and antiquated sand renovation process |
| CN107584069A (en) * | 2017-10-31 | 2018-01-16 | 湖北工业大学 | A kind of heat cure phosphate casting binder and preparation method thereof and application method |
| CN108751141A (en) * | 2018-07-03 | 2018-11-06 | 贵州大学 | A kind of method of ardealite and red mud relieving haperacidity coproduction modified phosphate binder |
| CN109093062A (en) * | 2018-07-27 | 2018-12-28 | 湖北工业大学 | A kind of phosphate binders and preparation method thereof that nano yttrium oxide is modified |
| CN109454200A (en) * | 2018-12-14 | 2019-03-12 | 湖北工业大学 | A kind of phosphate binders liquid curing-agent and its application |
-
2019
- 2019-09-23 CN CN201910900084.7A patent/CN110496935B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07232238A (en) * | 1994-02-23 | 1995-09-05 | Ube Ind Ltd | Production of collapsible sand core |
| WO2001030517A2 (en) * | 1999-10-26 | 2001-05-03 | Vaw Aluminium Ag | Binding agent system, core sand mixture and a method for producing the same |
| CN101259515A (en) * | 2007-03-05 | 2008-09-10 | 上海市机械制造工艺研究所 | CO2 hardened silicate-bonded sand additive agent and formative technology thereof |
| CN101941045A (en) * | 2009-07-10 | 2011-01-12 | 湖北工业大学 | Preparation method and application of phosphate inorganic casting binder suspension curing agent |
| CN101875830A (en) * | 2009-11-23 | 2010-11-03 | 黑龙江省科学院石油化学研究院 | Phenolic resin/phosphate hybrid adhesive and preparation method thereof |
| CN102139340A (en) * | 2011-02-01 | 2011-08-03 | 福州大学 | Composite powder binding agent containing gelatinized phosphate starch and kaolin and preparation method thereof |
| CN103272996A (en) * | 2013-04-16 | 2013-09-04 | 繁昌县恒鑫汽车零部件有限公司 | Sand sticking-resistant precoated sand |
| CN104289661A (en) * | 2014-09-10 | 2015-01-21 | 湖北工业大学 | Preparation of coated sand by use of phosphate inorganic binder and molding method thereof |
| CN106807882A (en) * | 2017-02-06 | 2017-06-09 | 柳州市柳晶科技有限公司 | Inorganic precoated sand antiquated sand regeneration decomposition helps liquid and antiquated sand renovation process |
| CN107584069A (en) * | 2017-10-31 | 2018-01-16 | 湖北工业大学 | A kind of heat cure phosphate casting binder and preparation method thereof and application method |
| CN108751141A (en) * | 2018-07-03 | 2018-11-06 | 贵州大学 | A kind of method of ardealite and red mud relieving haperacidity coproduction modified phosphate binder |
| CN109093062A (en) * | 2018-07-27 | 2018-12-28 | 湖北工业大学 | A kind of phosphate binders and preparation method thereof that nano yttrium oxide is modified |
| CN109454200A (en) * | 2018-12-14 | 2019-03-12 | 湖北工业大学 | A kind of phosphate binders liquid curing-agent and its application |
Non-Patent Citations (2)
| Title |
|---|
| 姜鹏: ""水溶性复合硫酸盐砂芯的性能及硬化工艺研究"", 《中国优秀硕士学位论文全文数据库》 * |
| 王坤等: ""水玻璃材料改性、硬化机理及应用前景"", 《佛山陶瓷》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110496935B (en) | 2021-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103864382B (en) | A kind of heat insulation sound-proof light foam concrete material and preparation method thereof | |
| CN103302233B (en) | A kind of thermmohardening casting binder and preparation method thereof and application | |
| CN109454200B (en) | Liquid curing agent for phosphate binder and application thereof | |
| CN102728775A (en) | Molding sand containing wood fiber and production method thereof | |
| CN105855456A (en) | Curing agent of phosphate bonding agent self-hardening sand and preparation and using methods of curing agent of phosphate bonding agent self-hardening sand | |
| CN108380814A (en) | A kind of regeneration precoated sand and preparation method thereof of casting swage part | |
| CN103586400A (en) | Preparation process of furan resin sand | |
| CN104387722A (en) | Compounding ratio of metal resin rapid die material and solidifying method thereof | |
| CN102351550A (en) | Preparation method of sand die material of fused zirconia corundum block | |
| CN105964883B (en) | Fire-retardant high deformability moulding sand for casting and preparation method thereof | |
| CN107344863A (en) | A kind of geo-polymer porous insulation material based on flyash and preparation method thereof | |
| CN111018416A (en) | Method for modifying performance of coal ash-based geopolymer by ultrasonic waves | |
| CN110496935A (en) | Mating liquid curing-agent and its application method for warm core box technique phosphate binders | |
| CN104031325B (en) | Polystyrene foam plate, its production method and the firming agent for it | |
| CN105414459A (en) | High-thermal-conductivity composite modified sodium silicate sand for pump valve castings, and preparation method thereof | |
| CN102861865A (en) | Molding sand proportioning technology for producing large supercritical casting steel | |
| CN110052572A (en) | A method of improving casting water glass mobility with polyethylene glycol | |
| CN106167600A (en) | Novel C O2hardening phenolic resin binding agent and preparation method | |
| CN105478656A (en) | High-green-compression-strength green moulding sand for iron casting and preparation method of high-green-compression-strength green moulding sand | |
| CN108907070A (en) | A kind of phosphate binders self-hardening sand curing agent and preparation method thereof | |
| CN110052571B (en) | Method for improving performance of water glass for casting by using polyether amine | |
| CN114276105A (en) | Performance testing method for replacing siliceous material with recycled glass fiber reinforced plastic powder | |
| CN105414470A (en) | Enhanced type composite modified sodium silicate sand for pump valve casting and preparing method thereof | |
| CN105964882A (en) | Environment-friendly molding sand adopting cellulose sulfate modified animal glue as adhesive and preparation method thereof | |
| CN105414460A (en) | High-pouring-precision composite modified sodium silicate-bonded sand for pump valve casting and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |